#517BE6#517BE6

#517BE6 is a mid, vivid blue. Relative luminance 0.216; OKLCH L 60.7% C 0.168 H 265.5°. Best body text is #000000 at 5.33:1 contrast (WCAG AA passes).

Color values

HEX	#517BE6
RGB	rgb(81, 123, 230)
HSL	hsl(223, 75%, 61%)
HSV	hsv(223, 65%, 90%)
CMYK	cmyk(64.8%, 46.5%, 0%, 9.8%)
CIE-LAB	lab(53.63, 19.19, -58.69)
CIE-LCH	lch(53.63, 61.75, 288.10°)
OKLab	oklab(60.7% -0.0131 -0.1679)
OKLCH	oklch(60.7% 0.168 265.5)
XYZ	xyz(24.7543, 21.6261, 77.7173)
Luminance	0.2163 (WCAG relative)
Temperature	cool
Family	blue

Closest named colors

Perceptual scales

Shades

Tints

Tones

OKLCH scale

Color harmonies

complementary

#517BE6 #E6BC51

analogous

#51C5E6 #517BE6 #7151E6

triadic

#517BE6 #E6517B #7BE651

tetradic

#517BE6 #E651C5 #E6BC51 #51E671

square

#517BE6 #E651C5 #E6BC51 #51E671

split-complementary

#517BE6 #E67151 #C5E651

monochromatic

#183FA5 #1F54DA #517BE6 #87A4EE #BCCCF5

Accessibility & contrast

On white

3.94

#517BE6 on #FFFFFF

AA ✗AA large ✓AAA ✗

On black

5.33

#517BE6 on #000000

AA ✓AA large ✓AAA ✗

Best text color

#000000 on #517BE6

5.33:1 — WCAG AA (normal text) passes

Contrast matrix

fg \ bg	##517BE6	#FFFFFF	#000000	##000000
##517BE6	1.00	3.94	5.33	5.33
#FFFFFF	3.94	1.00	21.00	21.00
#000000	5.33	21.00	1.00	1.00
##000000	5.33	21.00	1.00	1.00

Color blindness preview

Protanopia (red-blind)

#4587EA

Deuteranopia (green-blind)

#277AE4

Tritanopia (blue-blind)

#0094A5

Achromatopsia (no color)

#808080

Design tokens & code

CSS

--color: #517be6;
/* rgb */ color: rgb(81, 123, 230);
/* oklch */ color: oklch(60.7% 0.168 265.5);

Tailwind

colors: {
  custom: {
    50: '#90a0ee',
    500: '#517be6',
    950: '#000000',
  },
}

SCSS

$custom: #517be6;
$custom-light: #90a0ee;
$custom-dark: #000000;

JSON

{
  "hex": "#517be6",
  "rgb": {
    "r": 81,
    "g": 123,
    "b": 230
  },
  "hsl": {
    "h": 223.087,
    "s": 74.874,
    "l": 60.98
  },
  "oklch": {
    "l": 0.60695,
    "c": 0.16846,
    "h": 265.5
  },
  "luminance": 0.21628
}

Semantic roles & 50–950 ramp

primary

#517BE6

secondary

#E5D6AD

accent

#9E0ED7

background

#F9F9FE

surface

#F2F2FD

border

#CCCCD5

text

#0E0E16

muted

#7E7E84

Preview Lab

Preview with #517BE6

Body copy rendered with the generated semantic roles for this colour.

Preview Lab → · Contrast checker → · Palette generator →